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Brevard Zoo Discovery Stations - Adaptations Topics Animals Adapting to Changing Seasons Animals Adapting to Their Habitat Animals Adapting to Other Environmental Changes N.G.S.S.S. Science SC.3.L.17.1 SC.4.L.16.2 SC.5.L.15.1 SC.5.L.17.1 C.C.S.S. LACC.K12.R.1.1 LACC.K12.W.1.1 Overview What do animals do when it is too hot or too cold outside? How do they survive changes to their environment? Through participation in our Discovery Stations and pre-/post activities, students will develop an understanding of animals and their adaptations for survival. Objectives Students will classify forest animals by the adaptations needed to survive the changing seasons. Teacher Background Information Animals have many adaptations for increasing their chances of survival. Adaptations are any change in behaviors, structures, or physiology that enhances reproductive success in a particular environment. Adaptations can help us to understand animals. The flat molars of deer, for example, tell us that it is a plant-eater, or herbivore. Structural adaptations are physical parts of the body that increase an animal’s chances for survival. The toucan, for example, has a beak that is adapted to plucking fruit from the rainforest canopy. The giraffe’s long neck enables it to eat leaves at the tops of trees that are inaccessible to other animals. Flying squirrels have skin flaps from wrist to ankle that work like sails, enabling them to glide from tree to tree. LACC.K12.W.1.3 Adaptations can also be behavioral. Behavior is a response to the environment. Behavior influences growth, development, maintenance, and reproduction. For example, many birds puff up their feathers while sleeping so than an attacking predator may only end up with a mouthful of feathers. Teacher tip! Opossums actually pass out with fright when approached by a predator. This act of “playing dead” often causes predators to lose Animals that are interest. italicized can be Adaptation often occurs as a result of mutation and/or natural selection. Mutation is a sudden random change in the genetic material of a cell that may cause it and all cells derived from it to differ in appearance or behavior from the normal type. Natural Brevard Zoo - Discovery Stations 8225 N. Wickham Road, Melbourne, FL 32940 found at the zoo! Actual encounter may vary and is not guaranteed. 321.254.9453 x 219 selection is the process by which some genes and gene combinations in a population of species are reproduced more than others or when the population is exposed to an environmental change or stress. In this way, individual organisms are replaced by individuals whose genetic traits allow them to better cope with the change or stress. These better-adapted individuals then reproduce and pass their traits on to their offspring. People can have an effect on animal adaptation as well. One example is the peppered moth. During a time of industrial pollution, the peppered moth, with genetic traits that led to a darker appearance, survived while those in lighter appearance died off or migrated to a new location. Once the pollution was controlled and cleaned, the moth, whose traits produced a lighter camouflage, rebounded. Pre-Activity Vocabulary - See Appendix Overview Students will classify animals by their adaptations to survive during the changing seasons. Materials Needed • • • • • • Adaptation Behavioral Adaptation Physical Adaptation Migration Hibernation Camouflage • Pictures of mountain hare, lynx, bear, Canadian geese, elk, dormouse (*while images are provided, an internet search will provide better quality) • Dry-erase markers, eraser, whiteboard or if accessible, Doc-cam and projector Procedure 1. Introduce/Review the different types of adaptations, physical and behavioral. 2. On the whiteboard create a Tree Map for classifying. For the category name write: Adaptations. Then create two sub categories: Physical and Behavioral. Under the physical subcategory write camouflage. Under the behavioral subcategory write migration and hibernation. 3. Ask the students what they know about the three labels: hibernation, migration, and camouflage. Then go through each picture, and together with the students, analyze what adaptation(s) this animal may exhibit in order to survive a winter. 4. Classify each picture accordingly: Mountain Hare and Lynx – Camouflage; Bear and Dormouse- Hibernating; Canadian Geese and Elk- Migrating. 2 Brevard Zoo - Discovery Stations www.brevardzoo.org 5. You may extend the activity by allowing the students to analyze other animals, such as frogs, turtles, fish, snakes, tortoise (hibernating/dormancy); monarch butterfly, cranes, whales, manatees (migrating); arctic fox, birds- ducks, warblers, (change in camouflage). Online Resources • http://www.sciencemadesimple.com/animals.html • http://www.planet-science.com/categories/under-11s/our-world/2011/10/what-do-animalsdo-in-winter.aspx • http://www.techapps.net/interactives/pepperMoths.swf • http://books.google.com/books/about/How_Do_Animals_Adapt.html?id=oFVb2LP-1yQC Other Resources How Do Animals Adapt? The Science of Living Things Series. Bobbie Kalman. Crabtree Publishing Company, 2000. Brevard Zoo - Discovery Stations 8225 N. Wickham Road, Melbourne, FL 32940 321.254.9453 x 219 Pre-Activity Images – Found through Google Images Mountain Hare in the spring Mountain Hare in the winter 4 Brevard Zoo - Discovery Stations www.brevardzoo.org Lynx in the summer Lynx in the winter Brevard Zoo - Discovery Stations 8225 N. Wickham Road, Melbourne, FL 32940 321.254.9453 x 219 Grizzly Bear Dormouse 6 Brevard Zoo - Discovery Stations www.brevardzoo.org Canadian Geese Elk Brevard Zoo - Discovery Stations 8225 N. Wickham Road, Melbourne, FL 32940 321.254.9453 x 219 Peppered Moths 8 Brevard Zoo - Discovery Stations www.brevardzoo.org Appendix- Vocabulary 1. Adaptation- any change in an animal’s behavior, structure or physiology that enhances reproductive success in its environment. 2. Behavioral adaptation- a response to the environment that influences growth, development, maintenance, and reproduction. 3. Physical adaptation- a changing physical characteristic that enables its survival in a particular environment. 4. Migration- the animal behavior of traveling long distances to find a new habitat that allows for its survival. 5. Hibernation- the animal behavior of entering a sleep-like state, to conserve energy and survive the harsh elements of winter. 6. Camouflage- a physical adaptation that conceals an animal in its environment 7. Natural selection- process by which some genes and gene combinations in a population of a species are reproduced more than others when the population is exposed to an environmental change or stress. In this way, individual organisms are replaced by individuals whose genetic traits allow them to better cope with the change or stress. These traits are then passed on their offspring. Brevard Zoo - Discovery Stations 8225 N. Wickham Road, Melbourne, FL 32940 321.254.9453 x 219